Wall board and joint therefor



H. F. ADAMS WALL BOARD AND JOINT THEREFOR Filed Feb. 215, 1924 3140 111f or HarryEAda 1215 Patented Feb. 10, 1925.

UNITED STATES HARRY r. ADAMS, or cnnnnroa'r, NEW YORK.

WALL BOARD AND JOINT THEREFOR.

Application filed February 23, 1924. Serial No. 694,650.

To all whom it may concern:

Be it known that I, HARRY F. ADAMS, residing at Greenport, county ofSuffolk,

' State of New York, a citizen of the United States, have invented.certain new and useful Improvements in Wall Boards and Joints 'Iherefor,of which the following is a specification.

This invention relates to wall boards and joints for joining the edgesthereof together. The increased use of wall boardfor walls and ceilingshas emphasized the value and utility of the same. The present objectionto its use is that the use of strips of wood or metal is necessary tocover up the nail heads which are used to secure the board in place. Anyattempt to countersink the nails, will cause the weakening of the wallboard structure. In addition to this condition, the edges of the boardhave been so constructed as to make a proper joint difficult ifnotinipossible.

The primary object of the 1present invention isto so construct a walboard edge, that nailshaving large heads may be driven securel throughthe edge of the board and whose eads may contact with but not enter thesurface, the outer edge of the nail head being inward of the outersurface of the board.

Another object of my invention is the provision of edges on wall boardsand a joint therefor, the edges being so constructed that the materialof the joint will be keyed in place between the two edges.

Referring to the drawings, where I have illustrated various preferredforms of my' invention,

Fig. .1 is a sectional perspective view of my improved wall board edgeand joint therefor.

Figs. 2 to 4 are similar views of various modified forms of theinvention.

Referring to Figure 1, 10 and 11 represent adjacent wall boards. Inplace of the usual edge, I have provided a special construction having asurface 12 at a substantial angle to the outer surface of the wallboard, 11. From the bottom of this surface is a surface 13 which isutilized as a nailing surface. At the edge of the-nailing surface is asurface 14 which is undercut in a manner similiar to the undercutshowing of the surface s 12. A nail 15 having a head 16 is illustratedas contacting with the surface 13. .This

head does not injure the structure of the wall board and yet is entirelyinward of the outer surface of the'board.

In a similar manner, the surfaces 17, 18 and 19 are provided on the wallboard 10, the nail 20 having a head 21 being entered into the wall boardat the surface 18 and driven through into the stud or other support 22.

The space between the plane of the outer surfaces of the boards 'and'thestud or other support 22 and between the two adjacent edges of the wallboard is filled with a suitable filler 23, such as plaster, the outersurface being smoothed to make it flush with the wall boards.

It will be noted that in the construction shown in Fig. 1, the part 25and the part 24 of the filler which are respectively inward andoutwardof the edge between surfaces 1 1, 13 and 18, 19, are both key shaped andare prevented by their structure from falling away. In addition to thekey shape, the 1 heads of the nails if properly shaped and driven, mayalso become keys which will outer surfaces of the boards. This, ofcourse, makes a corresponding change in the outer portion 24: of thefiller 23 InFig. 3, the parts 10, 11 13", 14", 15 16", 18 19 20", 21 22and 25 correspond to similar parts'of Figs. 1 and 2, it being noted thatthe surface 13 joins the outer surface of the board 11 and the surface18 joins the outer surface of the board 10", causing a correspondingchange in the shape of the part 2 1" of the filler 23*.

In Fig. 4:, I have shown the boards 10 and 11. Between the upper andlower surfaces of these boards, I have provided surfaces 13, 18 havingsections in the shape of an ogee. The nails 15 and 20 are driven inthese ogee surfaces through the adjacent portions of the boards and intothe stud or other support 22. The filler 23 is held in place between thetwo boards in a manner similar to the filler 23 of Fig. 1.

In any or all of these forms, the surfaces may be suitably sized orroughened or both before the filler is laced.

It will thus be c ear that I have provided stantially at rightangles tothe plane of the i an edge for a wall board through which a nail may bedriven without injury to .the wall board structure and which edge whenadjacent a similar edge will provide a secure these are merelyillustrative and that other modifications and changes may be madewithout departing from the spirit of my invention and within the scopeof the appended claims.

Having described my invention, what I claim is 1. A manufactured wallboard sheet having two parallel surfaces in its two greatest dimensionsand a surface at the edge of the board, the surface at the edge of theboard having a slanting relation to the parallel surfaces and means forholding a plastic material on the slanting surface to form acontinuoussurface between the adjacent edges of the exposed surfaces of adjacentboards when in place.

2. A manufactured wall board sheet having two parallel surfaces in itstwo greatest dimensions and a surface at the edge of board having aslanting relation to the parallel surfaces and an undercut portionadjacent the slanting surface for holding a plastic material on theslanting surface to form continuous surface between the ad- 5 jacentedges of the exposed surfaces of adj acent boards when in place.

3. A manufactured wall board sheet having two parallel surfaces in itstwo greatest dimensions and a surface at the edge of the board having aslanting relation to the parallel surfaces and an undercut portionadjacent each side of the slanting surface for holding a plasticmaterial on the slanting surface to form a continuous surface betweenthe adjacent edges of the exposed surfaces of adjacent boards when inplace.

4. In combination the frame of a house,

and inner surfaces and a space adjacent the Y edges of the nailingsurfaces ofand between the adjacent edges of adjacent sheets and ahardening plastic means for filling the space between adjacent sheets.

5. In combination the frame of a house, manufactured wall board sheetsextending between portions of the frame and having edges extending alongportions of the frame, the wall board sheets having nailing surfaces atan angle less than a right angle to the surface next to the frame, and ameans for filling the space between the two adjacent edges of adjacentwall board sheets, connecting the outer surfaces thereof and coveringthe nailing surfaces.

6. In combination, the frame of a house, manufactured wall board sheetsextending between portions of the frame and having edges extending alongportions of the frame, the wall board sheets having sur faces at theiredges making acute angles with the respective surfaces adjacent theframe and between the outer and inner surfaces of the wall board sheets,a hardening plastic means filling the space between adjacent sheets, theadjacent edges of adjacent sheets having surfaces coacting with thefilling means to hold the latter 1n place.

In testimony whereof I hereunto aflix my signature.

HARRY F. ADAMS.

